Cloning and Sequencing of gB Gene from Porcine Cytomegalovirus Isolated in Fujian
-
摘要: 为明确猪巨细胞病毒福建株(PCMV-FJ01)的gB基因特征,根据其序列特征,设计特异性引物对其进行分段扩增,并对目的片段进行克隆测序。结果发现,PCMV-FJ01株gB基因全长为2 580 bp,编码859个氨基酸;其和GenBank数据库中的PCMV分离株的gB基因的核苷酸和氨基酸同源性分别均在98.3%和97.9%以上。此外,本研究还发现部分(约50%)PCMV代表株的gB基因存在ACA三核苷酸缺失(436位氨基酸存在谷氨酰胺Q的缺失)。除ZZ株外,PCMV不同分离株的gB基因是否存在基因缺失和其遗传进化正相关。Abstract: Based upon the characterization of gB gene retrieved from GenBank, specific primers were selected to amplify the gB gene of porcine cytomegalovirus (PCMV) FJ01 isolated in Fujian. The target PCR fragments were then cloned and sequenced. The gB gene was found to have 2 580 nucleotides, encoding 859 amino acids. Its homologies on nucleotide and amino acid sequences with the data at GenBank were greater than 98.3% and 97.9%, respectively. In addition, nearly half of the PCMV isolates had a same ACA nucleotide deletion in their gB genes that correlated to the phylogenetic evolution of the isolates, except ZZ strain.
-
Key words:
- porcine cytomegalovirus /
- gB gene /
- clone /
- sequence analysis
-
表 1 供试引物序列
Table 1. Primers used in this study
名称引物 序列 (5′-3′) 大小 文献 检测 PCMVF1 ACC GTC TGA GAG ACT GAA CTT CTC TGA CAC 431 [10] PCMVR1 CCC TGA TCT TAA ATG ACG AGG ACG TGAC gB-Ⅰ gB1F1 ATG TTT GCG GTC TCT TGT CA 1252 TS gB1R1 TCT GTT TTG TTG TGT GTA TTG TTA gB-Ⅱ gB2F2 ACC GAA TAC GAG TGT GTG AA 1487 gB2R2 TAA AGA ATG TCA TGC CCG TCA 注:TS表示本研究设计针对gB基因的引物。 表 2 猪巨细胞病毒参考株信息
Table 2. Information on PCMV reference strains
-
[1] DONE J T. An "inclusion body" rhinitis of pigs[J]. Vet Rec, 1955, 67:525-527. https://www.cabdirect.org/cabdirect/abstract/19562200565 [2] 李三星, 许宝琦, 单永利, 等.猪巨细胞病毒病的诊断报告[J].辽宁畜牧兽医, 1996, (1):30. http://www.cnki.com.cn/Article/CJFDTOTAL-LNXM199601025.htm [3] 刘兴彩, 尹燕博, 张毅, 等.猪巨细胞病毒PCR诊断技术的建立[J].中国兽医杂志, 2009, 45(12):34-35. http://www.cnki.com.cn/Article/CJFDTOTAL-ZSYZ200912013.htm [4] 赵金萍.猪巨细胞病毒病研究进展[J].国外畜牧学:猪与禽, 2010, 30(6):94-95. http://d.wanfangdata.com.cn/Periodical/gwxmx-zyq201006045 [5] 刘捷, 陆琪, 王先炜, 等.猪圆环病毒2型、猪巨细胞病毒和TTV-2混合感染的流行病学调查[J].中国兽医学报, 2011, 31(8):1095-1098. http://www.cnki.com.cn/Article/CJFDTOTAL-ZSYX201108003.htm [6] LIU X, LIAO S, ZHU L, et al. Molecular epidemiology of porcine Cytomegalovirus (PCMV) in Sichuan Province, China:2010-2012[J]. PLoS One, 2013, 8(6):e64648. doi: 10.1371/journal.pone.0064648 [7] 裴晓萌, 刘捷, 朱睿, 等.我国部分地区猪巨细胞病毒感染的检测[J].畜牧与兽医, 2014, 46(7):106-108. http://www.cnki.com.cn/Article/CJFDTOTAL-XMYS201407031.htm [8] 刘骁, 廖珊, 朱玲, 等.猪巨细胞病毒gB基因优势抗原表位区的原核表达及间接ELISA方法的建立[J].中国兽医科学, 2013, (2):152-158. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGSY201302007.htm [9] CORREA C, KOURÍ V, PÉREZ L, et al. Diagnosis, gB genotype distribution and viral load of symptomatic congenitally infected CMV patients in Cuba[J]. J Perinatol, 2016, doi:10.1038/jp.2016.95.[Epubaheadofprint]. [10] 拜廷阳.猪巨细胞病毒快速检测方法的建立及河南猪群流行病学调查[D].北京:中国农业大学, 2014. [11] WIDEN F, GOLTZ M, WITTENBRINK N, et al. Identification and sequence analysis of the glycoprotein B gene of porcine cytomegalovirus[J]. Virus Genes, 2001, 23(3):339-346. doi: 10.1023/A:1012581508733 [12] GOLTZ M, WIDEN F, BANKS M, et al. Characterization of the DNA polymerase loci of porcine cytomegaloviruses from diverse geographic origins[J]. Virus Genes, 2000, 21(3):249-255. doi: 10.1023/A:1008156017758 [13] XIAO C, YU X, LI R, et al. Glycoprotein B gene-based phylogenetic analysis of porcine cytomegalovirus isolates[J]. Acta Virol, 2011, 55(4):361-363. https://www.researchgate.net/publication/51859965_Glycoprotein_B_gene-based_phylogenetic_analysis_of_porcine_cytomegalovirus_isolates [14] GU W, ZENG N, ZHOU L, et al. Genomic organization and molecular characterization of porcine cytomegalovirus[J]. Virology, 2014, 460-461:165-172. doi: 10.1016/j.virol.2014.05.014 [15] 李英伦, 房春林.猪巨细胞病毒病研究进展[J].中国动物保健, 2011, 13(2):18-20. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGDB201102009.htm [16] DAVISON A, PELLETT P, STEWART J. Rename species in the family Herpesviridae to incorporate a subfamily signation[OL]. http://ictvonline.org/taxonomyHistory.asp?taxnode_id=20150895&taxa_name=Human%20betaherpesvirus%205.